Mathematics
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qaphla
  • Member for 8 years, 11 months
  • Last seen more than 4 years ago
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41
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15
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14
Posts %
32
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8
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8
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28
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7
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26
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8
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8
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7
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17
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9
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Top posts
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All Questions Answers
Score Newest
answer
17
Can we have $x\in A$ and $x\in A\times B$?
Jul 17, 2015
answer
17
Are polynomials infinitely many times differentiable?
Jun 29, 2015
answer
15
Reasoning that $ \sin2x=2 \sin x \cos x$
Aug 5, 2013
answer
13
How many 32 digit binary number combinations are possible?
Aug 5, 2013
answer
11
After what interval in degrees or radians do sine, cosine and tangent values repeat?
Aug 30, 2013
answer
8
Does a bijective map from $(-\pi/2,\pi/2)\to (0,1)$ exist?
May 29, 2016
answer
7
A sigma notation but with multiplication instead of addition?
Aug 7, 2014
answer
7
What is a "closed subspace" of a topological space?
Aug 21, 2014
answer
7
What's a non-zero (column) vector?
Sep 8, 2013
answer
7
How many 3-digit positive integers are odd and do not contain digit 5?
Aug 29, 2013
Top network posts
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54
Why do os.path.isfile return False?
16
A Martin Gardner problem about constructing a scoreboard given minimal information
15
What does the "Just" syntax mean in Haskell?
13
Prefix and postfix increment in for loop
11
Trouble with Curry functions (SML/NJ)

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